Change registration layout

I would like to make layout changes to the registration form on my site, which is here: 108.163.199.96/~greatbr2/attend/6-new-yo...ividual-registration

For example, it is too long in one column; it needs to be two or three columns, responsive.

Please let me know which files to adjust for this?

Thank you!

Hi

The file is components/com_eventbooking/views/register/tmpl/default.php

Regards,

Tuan